When the Robot Calls the Shot: The Meltax 20L in an Automated Line

As production lines become more automated, the hot melt machine's role changes. It is no longer a standalone unit operated by a person standing beside it. It becomes a node in a control network — receiving trigger signals, reporting status, and dispensing adhesive in coordination with conveyors, robot arms, and PLCs.

That shift changes the specification checklist. Output capacity still matters, but so do signal interfaces, response time, recipe management, and the ability to drive multiple dispensing points from one controlled source.

The interface layer

The Meltax 20L Touch Sensitive 14:1 Piston Pump Hot Melt Adhesive Machine includes a reserved automation interface designed for seamless connection with conveyor systems, robot arms, and PLC control systems, enabling a fully automatic workflow. Combined with the touch screen control panel — which visualizes temperature, pressure, dispensing time, and gun status — the machine can be supervised and adjusted from the line's control architecture rather than only at the machine.

Multi-point dispensing from one controlled host

Automated lines frequently require adhesive at several positions in a single cycle. The Meltax 20L drives 4 to 8 glue guns from one main unit, with each gun independently switchable. For an air filter manufacturer running multi-layer composite lamination, a single Meltax 20L host now drives six working stations simultaneously — replacing multiple small melters, saving floor space, and, critically for automation, providing one synchronized control point instead of several that must be adjusted in parallel.

Response time and cut-off in automated cycles

In automated dispensing, the pump's response time directly affects placement accuracy. The Meltax 20L's 14:1 pneumatic piston pump provides pulsed dispensing with fast response — suited to intermittent dot and bead spraying where each cycle must start and stop cleanly. Clean cut-off prevents dripping and stringing, which matters more, not less, when no operator is watching each cycle.

Recipe management for mixed-product automation

Automated lines increasingly run mixed product schedules. The Meltax 20L's touch screen supports saved process recipes with one-click loading. A book and hardcover binding plant producing notebooks, photo albums, and hardcover books used this to cut changeover time by 80% — a figure that matters in automated environments where changeover also requires re-teaching or re-sequencing upstream equipment.

Power and footprint in existing facilities

Automation retrofits usually happen in buildings that were not designed for them. The Meltax 20L's 4.0KW total power supports 220V/380V, 50Hz dual voltage, and its 950×470×621mm footprint with 80kg net weight allows installation beside existing conveyors without layout changes. Core components are tested under long continuous operation and remain stable in workshop environments with dust and normal temperature, with a low failure rate — a practical requirement when the machine is one link in an unattended process.

The manufacturer behind the integration

The Meltax 20L is produced by Guangzhou Keqirui Machinery Equipment Co., Ltd. , a hot melt glue machine equipment manufacturer integrating research and development, manufacturing, sales and service. Since the establishment of the company, Keqirui has been delivering quality hot melt machine products to the majority of users and has won the trust of customers. Sincere cooperation and common development is the business philosophy of Keqirui Machinery; the company has won praise from customers through high-quality product quality and honest business services, while creating maximum value for customers.

On an automated line, a hot melt machine is judged by how well it participates. The Meltax 20L is specified to participate.